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Infant Pathways to Externalizing Behavior: Evidence of Genotype × Environment Interaction

  • Autores: Leslie D. Leve, David C. R. Kerr, Daniel Shaw, Xiaojia Ge, Jenae M. Neiderhiser, Laura V. Scaramella, John B. Reid, Rand D. Conger, David Reiss
  • Localización: Child development, ISSN 0009-3920, Vol. 81, Nº. 1, 2010, págs. 340-356
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • To further the understanding of the effects of early experiences, 9-month-old infants were observed during a frustration task. The analytical sample was composed of 348 linked triads of participants (adoptive parents, adopted child, and birth parent[s]) from a prospective adoption study. It was hypothesized that genetic risk for externalizing problems and affect dysregulation in the adoptive parents would independently and interactively predict a known precursor to externalizing problems: heightened infant attention to frustrating events. Results supported the moderation hypotheses involving adoptive mother affect dysregulation: Infants at genetic risk showed heightened attention to frustrating events only when the adoptive mother had higher levels of anxious and depressive symptoms. The Genotype × Environment interaction pattern held when substance use during pregnancy was considered.


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